I believe one of the characteristics of a cult, is that its members claim that their religion, is the only one, and they, with their haughty, self righteousness, have a lock on the truth. There are quite a few religions that claim to be the only true church. There are 3 of them, right here, where I live, all claiming, they are the ONLY true church. I dont accept ANY of them.
Do you notice that on these threads very few non-Catholics (almost NONE) assert that everyone MUST be their flavor of Christian in order to be saved? Indeed, it IS the cults which do this. Roman Catholicism at one time adamantly declared no one could be saved UNLESS they were Roman Catholics - and even then, one had to be in a "state of grace". So many hoops!